John blasdale



(No Model.) 2 sheets sheet 1.

J. BLASDALET LOGOMOTIVB. I

No. 380,168. Patented Mar. 27, 1888.1 8. r

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- 2' Sheets-Sheet J BLASDALB;

(No Model.)

LOUOMOTIVB.

Patgnted Mar. 27, 1888'.

INVENTORAY ATTORNEY.

N PETER? Photo-Lithographer. Walllingion. EC.

I 'UNITED STATES PATE T OFFICE.

JoHN BLASDALE, OF BALTIMORE, MARYLAND, AssIeNoR TO THE RICHMONDLoooMorIvR AND MAoHINH WORKS, or RIoHMoND, VIRGINIA.

LOCOMOTIV-E."

SPECIFICATION forming part of Letters Patent No. 380,168, dated March27, 1888.

Application filed December 27. 1887. Serial No. 259.181. (N model.)

To all whom it may concern.-

Be it known that I, JOHN BLASDALE, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented certainnew and useful Improvements in Locomotives, of which the following isaspecification.

My invention relates to that class of locomotives which are employed inlumbering regions and similar places, where the temporary IO trackconsists of poles or rough wooden stringers, which are rough and uneven.It is desirable in this class of locomotives to allow the driving-wheelsto have a free lateral movement independent of each other.

The invention is fully illustrated in the accompanying drawings, inwhich- Figure 1 is a side View of a locomotive provided with myimprovement. Fig. 2 is a plan view of the frame, showing the partrelating to the invention. Figs. 3and 4 are side and top views,respectively, of a driving-wheel, master-shaft, and connecting-rod. Fig.5 is a diametrical section of a driving-wheel and its connections. Fig.6 is an inner side view of a driving-disk. I The letter A designates theframe; B, the driving-wheels, which may or may not have grooved rims a.The frame rests on vertical pedestals C, and the axle-boxes c fit in thepedestals and may move therein vertically. A spring, (1, is interposedbetween the frame and each axle-box. The wheels B turn loosely on theaxle, and also have lateral movement endwise of the axle.

The axle-boxc is provided with an extension or sleeve, 0, whichsurrounds the axle e, and projects outward similar to that shown,described, and claimed in Letters Patent of the United States No.367,335, granted to ine July 26, 1887.

A driving-disk, E, is mounted to turn loosely on the axle, and hasposition on theend of the axle outside of the wheel B. This driving-diskmay be confined from coming off in any suitable way by a collar orplate, for instance, made fast to the end of axle. The drivingdiskturns, but has no lateral movement on the axle.

My invention consists of a flexible connec 50 tion between thedriving-wheel B, mounted on the axle or on the sleeve 0, so as to havelateral two parallel bars.

movement endwise of the axle, and the driving-disk E, mounted on theaxle, but immovable laterally or endwise of the axle. Theflexible-connection in the present instance consists of the links h, oneend of which is jointed at h to the driving-wheel B and the other endjointed at h to the driving-disk E. The link h may consist of a singlebar, or, as shown, of

B; but three or four might be employed, if desired. .The particularconstruction here shown for joining the links consists of two eyebolts,z, secured to the wheel, and-two earsflc, secured to or cast on thedisk. The link-bars h are then jointed, as already stated, to the saideyebolt and ear. Motion imparted to the disk E will (See Fig. 6.) Twolinks h are used to connect each disk E with a wheel,

cause the driving-wheel B to revolve. on the axle e, (or, as it is inthe present instance on the sleeve c,) and at the same time thelinkconnection will allow said driving-wheel to have play or movement ina direction endwise of the axle. This movement is indicated by brokenlines on one'of the wheels B in Fig. 2.

The extension or sleeve 0, attached to the axle-box c, and on which thewheel B revolves, is not necessary to my present invention. I show it,however, and it is slightly modified in form from that shown in mypatent aforesaid. In this instance the said sleeve 0' extends toward theend of the axle far enough to receive a part only of the thickness ofthe hub of the driving-wheel B, and the drivingdisk E, as here shown,has a similar sleeve, 0 which enters the hub of the wheel B and meetsthe axle-box sleeve of. Therefore the drivingwheel B, as here shown,revolves on the axlebox sleeve 0 and the disk-sleeve 0 Both of thesesleeves may be dispensed with.

I may also state that my invention of the flexible or link connectionmay be used with the driving-disk E, revolving loosely onthe axle orfixed tight thereon. In the presentinstance it is loose.

A master-shaft, D, is suitably mounted onthe frame A, intermediate ofthe front and rear driving-wheels, B, and has at each end a crank, F.Each of the driving-disks E is provided with a crank-wrist, Z, and aconnecting-rod, G, connects the said driving-crank F with eachcrank-wrist l.

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desire to secure by Letters Patent of the United States- 1. In alocomotive, the combination of an axle, e, driving-wheels B, which havemovement endwise of the axle, a driving-disk, E, on

the axle immovable in a direction endwise of the axle, and a flexibleconnection between the said driving-wheel and driving-disk, wherebyrotary motion imparted to the driving-disk will revolve the drivingwheeland allow the latter to move endwise of the axle.

2. In a locomotive, the combination of an axle, e, driving-wheels B,which have movement endwise of the axle, a driving-disk, E,

on the axle immovable in a direction endwise 2 5 of the axle, and one ormore links, h, connecting the said driving-wheel and driving-disk,

said links having one end jointed to the driving-wheel and the other endjointed to the driving-disk.

3. In a locomotive, the combination of a master-shaft, D, provided witha driving-crank, F, an axle, e, driving-wheels B, which have movementendwise of the axle, a driving-disk, E, on the axle outside of thedriving-wheel, immovable in a direction endwise of the axle, andprovided with a crank-wrist, l, a flexible connection between saiddriving-wheel and driving-disk, and a connecting-rod, G, be-- tween thesaid driving-crank F and crankwrist.

In testimony whereof Iaffix my signature in presence of two witnesses.

JOHN BLASDALE.

Witnesses:

JOHN E. MORRIS, ROBERT L. CLEMMITT.

